The wine contains a magical antioxidant: resveratrol. Some resveratrol health products have also appeared in the market, and they also claim to protect cardiovascular, anti-cancer and anti-aging effects. But goodwill is good faith, what is this sacred resveratrol? Does it really have such a magical effect.
Resveratrol: from antitoxins to "health stars"
Resveratrol is a polyphenolic compound originally isolated from the roots of a plant of white squash (Veratrum grandiflorum) by the Japanese in 1940. Later, people also found the presence of resveratrol in the grape, and later found that many plants have it, such as mulberry, pomegranate, cranberry and blueberry, even in peanuts  . It was originally thought of as a phytoalexin - every plant in nature has a weapon of self-protection. Resveratrol is a plant produced during the growth of the grape itself to prevent mold infection.
In 1963, scientists discovered that resveratrol has anti-inflammatory and anti-oxidant effects, and then it has been found that resveratrol has a certain protective effect on cardiovascular. Cardioprotection is because resveratrol can dilate blood vessels and has anti-inflammatory and scavenging free radicals produced by oxidation. “French public opinion” (note: French people often have high-fat and high-cholesterol foods in their daily diet, but the incidence of cardiovascular disease is relatively low). After being proposed, it is speculated that resveratrol in wine is a mysterious factor behind the scenes. Resveratrol is "fire".
Resveratrol is not much in grapes and wine . In fact, the content of resveratrol in wine is very low, usually only 0.5-10 mg / L . Moreover, with the influence of origin, variety, season and other factors, the content of resveratrol in different wines will also be different.
With the fame of resveratrol, various resveratrol health supplements have begun to appear in the health care products market – don't assume that they are all extracted from grapes. Since the resveratrol in the grapes is not much, the extraction efficiency from the grapes is too low. To obtain resveratrol, people can now use chemical synthesis or biosynthesis. If you see a resveratrol capsule that claims to be "natural", don't believe it.